Document Type

Dataset

Publication Date

8-2021

Abstract

The project builds on a prior app that was designed for Green Light Optimized Speed Advisory (GLOSA). This is more colloquially known as keeping a vehicle in the green wave: you are at a location and moving at a speed that will allow you to (theoretically) have a green light at each intersection you encounter along a corridor. Our long-term goal is to extend the FastTrack app described in the Background section to include actuated signals along a corridor. This project takes a first step by evaluating the effectiveness of machine-learning algorithms to predict the next phase of an actuated signal on a busy bike corridor, given information about the past K phases. In essence, this is what is called a time-series forecasting problem. If we find forecasting success here, then we can begin to incorporate these algorithms into a more comprehensive GLOSA app (post-grant).

The project used data captured during the prior V2X project captured from the 18th and Alder intersection in Eugene OR during 12 days in June 2018. Loop detectors and advanced loop detectors currently exist in both directions on Alder to recognize the presence of bicycles and vehicles. The dataset consists of phase-change data for a complicated intersection that plays a key role in a bike corridor. The intersection has eight separate phases, all callable, that serve vehicles, bicyclists, pedestrians, and buses, all in various combinations. The data was taken from the month of June 2018. June is typically a heavy biking month near the University of Oregon campus.

Description

The data and guide support a final report published on NITC’s website “Green Waves, Machine Learning, and Predictive Analytics” (2021).

List of files that are included with the data product:

  • NITC 1299 data guide _ pdf with steps for recreating the research.
  • NITC 1299 csv_ file containing 42,920 rows of data; a new row was generated on each phase change.

Guide is available online: https://colab.research.google.com/drive/12Q8Sn0JnNFEfYxelGJOU3dVP0X8P191w?usp=sharing#scrollTo=hmkJbQsKg2ZR

The final report can be found at: https://dx.doi.org/10.15760/trec.264

DOI

10.15760/TREC_datasets.15

Persistent Identifier

https://archives.pdx.edu/ds/psu/36650

NITC1299 Intersection data.csv (988 kB)
CSV file

nitc1299_data_guide.pdf (617 kB)
Pdf with steps for recreating the research

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